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  1. #25
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    Mar 2007
    Posts
    2017
    Hi Simba77eg

    as you have noted RN1 is 5 bussed resistors ,connected to a common terminal

    RN2 and RN3 being isolated resistors


    does this link help

    http://www.farnell.com/datasheets/90452.pdf

    it shows most variations of the resistor networks available

    resistor networks are available in single in line and
    dual in line packages

    the advantage being ease of assembly , space saving and close matching of the resistors in the network

    I can see no reason why you can't use individual resistors in the linistepper circuit


    John

  2. #26
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    Oct 2005
    Posts
    2392
    Individual resistors will be fine if you are building your own.

    We changed to the SIL resistor packs as a service to the user, as they make it much faster and easier to build the Linistepper kit compared to individual resistors, which need colours reading, wire bending, inserting, wire snipping etc etc.

  3. #27
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    Jun 2011
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    0

    Finally

    Thanks john 100...sorry been away for a while...actually using single resistors is what i did.
    I finished building my linis plus the bob, now I am working on programing the PIC, It is my first time and I am having quit a hard time but i want to learn.
    i will try to post photos for the finished boards.
    Attached Thumbnails Attached Thumbnails 21082011006.jpg  

  4. #28
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    May 2005
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    1397
    Looks nice simba! If you get tired of trying to program them yourself, pre-programmed PIC's are available for a few dollars US.
    ecomorder.com/techref/ecomprice.asp?p=416060

  5. #29
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    Dec 2011
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    0

    I need your help

    Hi,

    I made two different versions of linistepper v2 driver. The first was from Murat Shakman and the second from the shematic. Both of them not working.
    If I connect the motor (I tried 2 motors) and power (6volts, 0.8Ampere)to the drivers the motor does not "lock" and of course not move.
    Also I used the "4 axis BOB" from piclist com with the same results.
    I meassured the voltage of A-, A+, B-, B+ points and give me everyone about 6volts.
    I think the problem is at Pic16F628-20IP (it is working on an other project) programming.
    What fuses should be used?
    Thanks
    Attached Thumbnails Attached Thumbnails IMAG0003.jpg  

  6. #30
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    May 2005
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    1397
    The settings are listed in the source code: /Techref/io/stepper/linistep/Lini_asm_v21.asm
    James hosts the single best wiki page about steppers for CNC hobbyists on the net:
    http://www.piclist.com/techref/io/steppers.htm Disagree? Tell him what's missing! ,o)

  7. #31
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    0
    Quote Originally Posted by James Newton View Post
    The settings are listed in the source code: /Techref/io/stepper/linistep/Lini_asm_v21.asm
    Thank you sir.
    I didnt set the right settings to the software programmer. Finally I have two working linistepper drivers and I am going to make one more!!!

  8. #32
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    Oct 2011
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    27
    I knew I shouldn't mess with microcontrollers when I don't know how to program them but now it's too late. I've already built the circuit and I've got the same problem as you... what are those "right settings" ?
    What should I change in that asm before compiling ?


    Quote Originally Posted by spasmenokarabi View Post
    Thank you sir.
    I didnt set the right settings to the software programmer. Finally I have two working linistepper drivers and I am going to make one more!!!

  9. #33
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    Join Date
    Mar 2011
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    10

    Re: Question about Linistepper v2

    Quote Originally Posted by James Newton View Post
    That should be fine. Just set the correct device, PIC16F628A, in MPLAB.

    I have try and try but get a lot off errors from mplab, the Lini_asm_v21.asm file is full of bad characters, i have try everything but it do not compile.

    here a piece of it, it looks like the download or copy and paste put in bad characters in the file.


    Attachment 368594

    and here you see strange characters, I can not clean it, it just do not compile and complain, with a new save in utf the errors are less.

    downloading the file is also a problem, then there are a lot of bad characters involved and java is there also.

    Click image for larger version. 

Name:	ScreenHunter_352 Jul. 24 01.21.jpg 
Views:	0 
Size:	1.2 KB 
ID:	368596


    so strange, I do resume that the asm file fiust compile normal because the board works, maybe the pc here has trouble, these days internet is not that save,

    regards

  10. #34
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    May 2005
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    1397

    Re: Question about Linistepper v2

    Copy and paste the text from the page into a text editor (e.g. Notepad), NOT a word processor (e.g. Word) and save it.
    James hosts the single best wiki page about steppers for CNC hobbyists on the net:
    http://www.piclist.com/techref/io/steppers.htm Disagree? Tell him what's missing! ,o)

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